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18-03-2019
Mathematics

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Complete the recursive formula of the arithmetic sequence 9,-1,-11,-21

Respuesta :

19-03-2019

Step-by-step explanation:

[tex]a_1=9\\a_2=a_1-10=9-10=-1\\a_3=a_2-10=-1-10=-11\\a_4=a_3-10=-11-10=-21\\\vdots\\\\a_n=\left\{\begin{array}{ccc}a_1=9\\a_n=a_{n-1}-10\end{array}\right[/tex]

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